1. B. B. Devinson, About Established Motion of Subsoil Waters through Earthen Dams, in Works of HSI (Leningrad, 1932) [in Russian].
2. G. Hamel, Z. angewante Math. und Mech. 14 (3), 129 (1932).
3. M. Breitenoder, Ebene Grundwasserstromungen mit freier Oberflache (Berlin, 1942).
4. P. Ya. Polubarinova-Kochina, Theory of Motion of Subsoil Waters (Nauka, Moscow, 1977) [in Russian].
5. K. N. Anakhaev, Mat. Model. 23 (2), 148 (2011).